We had succesfully used this pseudoconstructori in the Rodin Project, a small DSL dedicated for teaching programming.
Details was published here: Studii si Cercetari Stiintifice - Seria Matematica-Informatica Univ. din Bacau, facultatea de Stiinte.

Download some papers from one archive from the page of Rodin Project or from Rodin/Download. Some links are needed ....(development).

7 ian 2011. We had studied the use of pseudoconstructors for Modular TypeCheckers to build modular plugin based type checkers. Good results.
Papers was publically defende in 2011 at NCMI ...
Ask popavdan A T YAH00 com for papers, if interested.